Uncaught TypeError: Cannot Read Property 'getElementsByTagName' Of Null
I'm trying to select elements with .getElementsByTagName(). var tags = document.body.getElementsByTagName('*'); Current attempt using lessons learned from an existing answer http
Solution 1:
Move the <script> from the <head> element to the <body> element.
document.body won't get a value assigned to it until the body element has been created.
Since you are trying to get all the elements in the <body>, you'd want to be at the end of the body element. Or put it in a function and call it from an event that fires after the body has been created (such as the window load event). To read more about that try, https://developer.mozilla.org/en-US/docs/Web/API/Window/load_event.
Solution 2:
Function examples:
Example with both methods:
function init() {
alert("hello javascript");
};
window.addEventListener("load",init,false);
$(document).ready(function () {
alert("hello jQuery");
});
Be careful, the JavaScript example above waits for page load (images, iframes, etc.). This takes more time than jQuery's ready.
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